Serfas Thunderbolt 2.0 Front Bike Light
About the Serfas Thunderbolt 2.0 Headlight Front Light
Be seen on your bike with this bright, compact front bicycle light.
The Thunderbolt 2.0 headlight features a 50-lumen output with 7 different light modes.
We also offer the Thunderbolt 2.0 rear light.
- Super bright 120-lumen daytime flash
- USB rechargeable
- Up to 23 hours run time
Weight: 40 grams with bracket
Battery: 500 mAh Lithium Polymer (can be replaced)
- High (60 lumens) : 1.5 hours
- Medium (40 lumens): 2.5 hours
- Low (20 lumens): 5.5 hours
- Daytime flash (120 lumens): 23 hours
- High flash slow (60 lumens): 12 hours
- High flash fast (60 lumens): 7.5 hours
- Low flash (25 lumens): 18.5 hours